refectory

plural refectories

1. A dining hall, especially in an institution such as a college or monastery.

   They compare very well with similar cafes elsewhere and the quality, for example, is far better and the price cheaper than in my college refectory.

   1964 April, “Letters: London stations—a consumers' guide”, in Modern Railways, page 274

   1 more example

   t was like a train going in and out of tunnels and that was like the noise of the boys eating in the refectory when you opened and closed the flaps of the ears.

   1916, James Joyce, A Portrait of the Artist as a Young Man, New York, N.Y.: B[enjamin] W. Huebsch, →OCLC